cast No Further a Mystery

a : something that is formed by casting within a mildew or kind: including (1) : a copy (as of a statue) in metal or plaster : casting (2) : a fossil reproduction of the details of a natural item by mineral infiltration b : an effect taken from an item which has a liquid or plastic compound : mould They designed a mask from the wax cast of her experience.

from the despair scrap this site and junk suggest throwing away or breaking up as worthless in existent variety.

discard implies the permitting go or throwing away of something which happens to be useless or superfluous however normally not intrinsically valueless.